<template>
  <div>
    <header class="home-header wrap" :class="{'active' : headerScroll}">
      <router-link tag="i" to="./category"><i class="nbicon nbmenu2"></i></router-link>
      <div class="header-search" @click="goProduct">
        <span class="app-name">青客</span>
        <i class="iconfont icon-search"></i>
        <router-link tag="span" class="search-title" to="./product-list/home">青风徐徐，客者自来</router-link>
      </div>
      <router-link class="login" tag="span" to="./login" v-if="!isLogin">登录</router-link>
      <router-link class="login" tag="span" to="./user" v-else>
        <van-icon name="manager-o"/>
      </router-link>
    </header>
    <nav-bar></nav-bar>
    <swiper :list="swiperList"></swiper>
    <div class="category-list">
      <div v-for="item in categoryList" v-bind:key="item.id">
        <img :src="item.img">
        <span>{{ item.name }}</span>
      </div>
    </div>
    <div class="good">
      <header class="good-header">新品上线</header>
      <div class="good-box">
        <div class="good-item" v-for="item in newGoodses.slice(0, 4)" :key="item.id" @click="goToDetail(item)">
          <img :src="prefix(item.goods_img)" alt="">
          <div class="good-desc">
            <div class="title">{{ item.goods_name }}</div>
            <div class="price"><span>¥ {{ item.selling_price }}</span><span class="xiao">销量: {{ item.sales_num }}</span>
            </div>
          </div>
          <div>{{item.goods_intro.substring(0,50)+'...' }}</div>
        </div>
      </div>
    </div>
    <div class="good">
      <header class="good-header">热门商品</header>
      <div class="good-box">
        <div class="good-item" v-for="item in hots.slice(0, 4)" :key="item.id" @click="goToDetail(item)">
          <img :src="prefix(item.goods_img)" alt="">
          <div class="good-desc">
            <div class="title">{{ item.goods_name }}</div>
            <div class="price"><span>¥ {{ item.selling_price }}</span><span class="xiao">销量: {{ item.sales_num }}</span>
            </div>
          </div>
          <div>{{ item.goods_intro.substring(0,50)+'...' }}</div>
        </div>
      </div>
    </div>
    <div class="good" :style="{ paddingBottom: '100px'}">
      <header class="good-header">最新推荐</header>
      <div class="good-box">
        <div class="good-item" v-for="item in recommends.slice(0, 4)" :key="item.id" @click="goToDetail(item)">
          <img :src="prefix(item.goods_img)" alt="">
          <div class="good-desc">
            <div class="title">{{ item.goods_name }}</div>
            <div class="price"><span>¥ {{ item.selling_price }}</span><span class="xiao">销量: {{ item.sales_num }}</span>
            </div>
          </div>
          <div>{{item.goods_intro.substring(0,50)+'...' }}</div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import navBar from '@/components/NavBar'
import swiper from '@/components/Swiper'
import {Toast} from 'vant'

export default {
  name: 'home',
  data() {
    return {
      swiperList: [],
      isLogin: false,
      headerScroll: false,
      hots: [],
      newGoodses: [],
      recommends: [],
      categoryList: [],
    }
  },
  created() {
    this.$axios.get(this.$settings.BASE_URL + 'classify/category/').then(res => {
      this.categoryList = res.result
    });
    this.$axios.get(this.$settings.BASE_URL + 'goodsshelf/time/').then(res => {
      this.newGoodses = res.result
    });
    this.$axios.get(this.$settings.BASE_URL + 'goodsshelf/top/').then(res => {
      this.hots = res.result
    });
    this.$axios.get(this.$settings.BASE_URL + 'goodsshelf/goods/').then(res => {
      this.recommends = res.result
    });
  },
  components: {
    navBar,
    swiper,
  },

  async mounted() {
    const token = this.$cookies.get('token')
    if (token) {
      this.isLogin = true
    }
    window.addEventListener('scroll', this.pageScroll)
    Toast.loading({
      message: '加载中...',
      forbidClick: true
    });
    Toast.clear()
  },
  methods: {
    goProduct() {
      this.$router.push({path: `product-list/${'home'}`})
    },
    pageScroll() {
      let scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop
      scrollTop > 100 ? this.headerScroll = true : this.headerScroll = false
    },
    goToDetail(item) {
      this.$router.push({path: `product/${item.id}`})
    }
  }
}
</script>

<style lang="less" scoped>
@import '../common/style/mixin';

.home-header {
  position: fixed;
  left: 0;
  top: 0;
  .wh(100%, 50px);
  .fj();
  line-height: 50px;
  padding: 0 15px;
  .boxSizing();
  font-size: 15px;
  color: #fff;
  z-index: 10000;

  .nbmenu2 {
    color: @primary;
  }

  &.active {
    background: @primary;

    .nbmenu2 {
      color: #fff;
    }

    .login {
      color: #fff;
    }
  }

  .header-search {
    display: flex;
    .wh(74%, 20px);
    line-height: 20px;
    margin: 10px 0;
    padding: 5px 0;
    color: #232326;
    background: rgba(255, 255, 255, .7);
    border-radius: 20px;

    .app-name {
      padding: 0 10px;
      color: @primary;
      font-size: 20px;
      font-weight: bold;
      border-right: 1px solid #666;
    }

    .icon-search {
      padding: 0 10px;
      font-size: 17px;
    }

    .search-title {
      font-size: 12px;
      color: #666;
      line-height: 21px;
    }
  }

  .icon-iconyonghu {
    color: #fff;
    font-size: 22px;
  }

  .login {
    color: @primary;
    line-height: 52px;

    .van-icon-manager-o {
      font-size: 20px;
      vertical-align: -3px;
    }
  }
}

.category-list {
  display: flex;
  flex-shrink: 0;
  flex-wrap: wrap;
  width: 100%;
  padding-bottom: 13px;

  div {
    display: flex;
    flex-direction: column;
    width: 20%;
    text-align: center;

    img {
      .wh(40px, 40px);
      margin: 13px auto 8px auto;
    }
  }
}

.good {
  .good-header {
    background: #f9f9f9;
    height: 50px;
    line-height: 50px;
    text-align: center;
    color: @primary;
    font-size: 16px;
    font-weight: 500;
  }

  .good-box {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;

    .good-item {
      box-sizing: border-box;
      width: 50%;
      border-bottom: 1PX solid #e9e9e9;
      padding: 10px 10px;

      img {
        display: block;
        width: 120px;
        margin: 0 auto;
      }

      .good-desc {
        text-align: center;
        font-size: 14px;
        padding: 10px 0;

        .title {
          color: #222333;
        }

        .price {
          color: @primary;
        }

        .xiao {
          font-size: 10px;
          color: #999999;
          padding-left: 20px;
        }
      }

      &:nth-child(2n + 1) {
        border-right: 1PX solid #e9e9e9;
      }
    }
  }
}

.floor-list {
  width: 100%;
  padding-bottom: 50px;

  .floor-head {
    width: 100%;
    height: 40px;
    background: #F6F6F6;
  }

  .floor-content {
    display: flex;
    flex-shrink: 0;
    flex-wrap: wrap;
    width: 100%;
    .boxSizing();

    .floor-category {
      width: 50%;
      padding: 10px;
      border-right: 1px solid #dcdcdc;
      border-bottom: 1px solid #dcdcdc;
      .boxSizing();

      &:nth-child(2n) {
        border-right: none;
      }

      p {
        font-size: 17px;
        color: #333;

        &:nth-child(2) {
          padding: 5px 0;
          font-size: 13px;
          color: @primary;
        }
      }

      .floor-products {
        .fj();
        width: 100%;

        img {
          .wh(65px, 65px);
        }
      }
    }
  }
}
</style>
